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循泵出力不足的原因()。
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循泵出力不足的原因()。
A、A、入口水池水位低;
B、B、叶片损坏;
C、C、转速低;
D、D、泵内有空气。
时间:2021-12-29 05:07
关键词:
汽机巡检员考试
危货押运员
答案解析
A| B| C| D
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